Showing content from http://hackery.ning.com/xn/static/js/dojo-0.3.1/src/widget/html/ContentPane.js below:
dojo.provide("dojo.widget.html.ContentPane"); dojo.require("dojo.widget.*"); dojo.require("dojo.io.*"); dojo.require("dojo.widget.HtmlWidget"); dojo.require("dojo.widget.ContentPane"); dojo.require("dojo.string"); dojo.require("dojo.string.extras"); dojo.require("dojo.style"); dojo.widget.html.ContentPane = function(){ this._onLoadStack = []; this._onUnLoadStack = []; dojo.widget.HtmlWidget.call(this); } dojo.inherits(dojo.widget.html.ContentPane, dojo.widget.HtmlWidget); dojo.lang.extend(dojo.widget.html.ContentPane, { widgetType: "ContentPane", isContainer: true, // remote loading options adjustPaths: true, href: "", extractContent: true, parseContent: true, cacheContent: true, preload: false, // force load of data even if pane is hidden refreshOnShow: false, handler: "", // generate pane content from a java function executeScripts: false, // if true scripts in content will be evaled after content is set and parsed scriptScope: null, // scopeContainer for downloaded scripts // If the user want a global in the remote script he/she just omitts the var // examples: //-------------------------- // these gets collected by scriptScope and is reached by dojo.widget.byId('..').scriptScope.myCustomproperty // this.myString = "dojo is a great javascript toolkit!"; // // this.alertMyString = function(){ // alert(myString); // } // ------------------------- // these go into the global namespace (window) notice lack of var, equiv to window.myString // myString = "dojo is a javascript toolkit!"; // // alertMyString = function(){ // alert(myString); // } // private _remoteStyles: null, // array of stylenodes inserted to document head // by remote content, used when we clean up for new content _callOnUnLoad: false, // used by setContent and _handleDefults, makes sure onUnLoad is only called once postCreate: function(args, frag, parentComp){ if ( this.handler != "" ){ this.setHandler(this.handler); } if(this.isShowing()||this.preload){ this.loadContents(); } }, show: function(){ // if refreshOnShow is true, reload the contents every time; otherwise, load only the first time if(this.refreshOnShow){ this.refresh(); }else{ this.loadContents(); } dojo.widget.html.ContentPane.superclass.show.call(this); }, refresh: function(){ this.isLoaded=false; this.loadContents(); }, loadContents: function() { if ( this.isLoaded ){ return; } this.isLoaded=true; if ( dojo.lang.isFunction(this.handler)) { this._runHandler(); } else if ( this.href != "" ) { this._downloadExternalContent(this.href, this.cacheContent); } }, setUrl: function(/*String*/ url) { // summary: // Reset the (external defined) content of this pane and replace with new url this.href = url; this.isLoaded = false; if ( this.preload || this.isShowing() ){ this.loadContents(); } }, _downloadExternalContent: function(url, useCache) { this._handleDefaults("Loading...", "onDownloadStart"); var self = this; dojo.io.bind({ url: url, useCache: useCache, preventCache: !useCache, mimetype: "text/html", handler: function(type, data, e) { if(type == "load") { self.onDownloadEnd.call(self, url, data); } else { // works best when from a live server instead of from file system self._handleDefaults.call(self, "Error loading '" + url + "' (" + e.status + " "+ e.statusText + ")", "onDownloadError"); self.onLoad(); } } }); }, // called when setContent is finished onLoad: function(e){ this._runStack("_onLoadStack"); }, // called before old content is cleared onUnLoad: function(e){ this._runStack("_onUnLoadStack"); this.scriptScope = null; }, _runStack: function(stName){ var st = this[stName]; var err = ""; for(var i = 0;i < st.length; i++){ try{ st[i].call(this.scriptScope); }catch(e){ err += "\n"+st[i]+" failed: "+e.description; } } this[stName] = []; if(err.length){ var name = (stName== "_onLoadStack") ? "addOnLoad" : "addOnUnLoad"; this._handleDefaults(name+" failure\n "+err, "onExecError", true); } }, addOnLoad: function(obj, func){ // summary // same as to dojo.addOnLoad but does not take "function_name" as a string this._pushOnStack(this._onLoadStack, obj, func); }, addOnUnLoad: function(obj, func){ // summary // same as to dojo.addUnOnLoad but does not take "function_name" as a string this._pushOnStack(this._onUnLoadStack, obj, func); }, _pushOnStack: function(stack, obj, func){ if(typeof func == 'undefined') { stack.push(obj); }else{ stack.push(function(){ obj[func](); }); } }, destroy: function(){ // make sure we call onUnLoad this.onUnLoad(); dojo.widget.html.ContentPane.superclass.destroy.call(this); }, // called when content script eval error or Java error occurs, preventDefault-able onExecError: function(e){ /*stub*/ }, // called on DOM faults, require fault etc in content, preventDefault-able onContentError: function(e){ /*stub*/ }, // called when download error occurs, preventDefault-able onDownloadError: function(e){ /*stub*/ }, // called before download starts, preventDefault-able onDownloadStart: function(e){ /*stub*/ }, // called when download is finished onDownloadEnd: function(url, data){ data = this.splitAndFixPaths(data, url); this.setContent(data); }, // usefull if user wants to prevent default behaviour ie: _setContent("Error...") _handleDefaults: function(e, handler, useAlert){ if(!handler){ handler = "onContentError"; } if(dojo.lang.isString(e)){ e = { "text": e, "toString": function(){ return this.text; } } } if(typeof e.returnValue != "boolean"){ e.returnValue = true; } if(typeof e.preventDefault != "function"){ e.preventDefault = function(){ this.returnValue = false; } } // call our handler this[handler](e); if(e.returnValue){ if(useAlert){ alert(e.toString()); }else{ if(this._callOnUnLoad){ this.onUnLoad(); // makes sure scripts can clean up after themselves, before we setContent } this._callOnUnLoad = false; // makes sure we dont try to call onUnLoad again on this event, // ie onUnLoad before 'Loading...' but not before clearing 'Loading...' this._setContent(e.toString()); } } }, splitAndFixPaths: function(/*String*/s, /*dojo.uri.Uri?*/url){ // summary: // fixes all remote paths in (hopefully) all cases for example images, remote scripts, links etc. // splits up content in different pieces, scripts, title, style, link and whats left becomes .xml if(!url) { url = "./"; } // point to this page if not set if(!s) { return ""; } // fix up paths in data var titles = []; var scripts = []; var linkStyles = []; var styles = []; var remoteScripts = []; var requires = []; // khtml is much more picky about dom faults, you can't for example attach a style node under body of document // must go into head, as does a title node, so we need to cut out those tags // cut out title tags var match = []; while(match){ match = s.match(/ ]*>([\s\S]*?)<\/title>/i); // can't match with dot as that if(!match){ break;} //doesnt match newline in js titles.push(match[1]); s = s.replace(/ ]*>[\s\S]*?<\/title>/i, ""); } // cut out , as that bails out in khtml var match = []; while(match){ match = s.match(/ ]*>([\s\S]*?)<\/style>/i); if(!match){ break; } styles.push(dojo.style.fixPathsInCssText(match[1], url)); s = s.replace(/ ]*?>[\s\S]*?<\/style>/i, ""); } // attributepaths one tag can have multiple paths example: // or // strip out the tag and run fix on that. // this guarantees that we won't run replace another tag's attribute + it was easier do var pos = 0; var pos2 = 0; var stop = 0 ;var str = ""; var fixedPath = ""; var attr = []; var fix = ""; var tagFix = ""; var tag = ""; var regex = ""; while(pos>-1){ pos = s.search(/<[a-z][a-z0-9]*[^>]*\s(?:(?:src|href|style)=[^>])+[^>]*>/i); if(pos==-1){ break; } str += s.substring(0, pos); s = s.substring(pos, s.length); tag = s.match(/^<[a-z][a-z0-9]*[^>]*>/i)[0]; s = s.substring(tag.length, s.length); // loop through attributes pos2 = 0; tagFix = ""; fix = ""; regex = ""; var regexlen = 0; while(pos2!=-1){ // slices up before next attribute check, values from previous loop tagFix += tag.substring(0, pos2) + fix; tag = tag.substring(pos2+regexlen, tag.length); // fix next attribute or bail out when done // hopefully this charclass covers most urls attr = tag.match(/ (src|href|style)=(['"]?)([\w()\[\]\/.,\\'"-:;#=&?\s@]+?)\2/i); if(!attr){ break; } switch(attr[1].toLowerCase()){ case "src":// falltrough case "href": // this hopefully covers most common protocols if(attr[3].search(/^(?:[#]|(?:(?:https?|ftps?|file|javascript|mailto|news):))/)==-1){ fixedPath = (new dojo.uri.Uri(url, attr[3]).toString()); } else { pos2 = pos2 + attr[3].length; continue; } break; case "style":// style fixedPath = dojo.style.fixPathsInCssText(attr[3], url); break; default: pos2 = pos2 + attr[3].length; continue; } regex = " " + attr[1] + "=" + attr[2] + attr[3] + attr[2]; regexlen = regex.length; fix = " " + attr[1] + "=" + attr[2] + fixedPath + attr[2]; pos2 = tag.search(new RegExp(dojo.string.escapeRegExp(regex))); } str += tagFix + tag; pos = 0; // reset for next mainloop } s = str+s; // cut out all script tags, push them into scripts array match = []; var tmp = []; while(match){ match = s.match(/ ]*)>([\s\S]*?)<\/script>/i); if(!match){ break; } if(match[1]){ attr = match[1].match(/src=(['"]?)([^"']*)\1/i); if(attr){ // remove a dojo.js or dojo.js.uncompressed.js from remoteScripts // we declare all files with dojo.js as bad, regardless of folder var tmp = attr[2].search(/.*(\bdojo\b(?:\.uncompressed)?\.js)$/); if(tmp > -1){ dojo.debug("Security note! inhibit:"+attr[2]+" from beeing loaded again."); }else{ remoteScripts.push(attr[2]); } } } if(match[2]){ // strip out all djConfig variables from script tags nodeValue // this is ABSOLUTLY needed as reinitialize djConfig after dojo is initialised // makes a dissaster greater than Titanic, update remove writeIncludes() to var sc = match[2].replace(/(?:var )?\bdjConfig\b(?:[\s]*=[\s]*\{[^}]+\}|\.[\w]*[\s]*=[\s]*[^;\n]*)?;?|dojo\.hostenv\.writeIncludes\(\s*\);?/g, ""); if(!sc){ continue; } // cut out all dojo.require (...) calls, if we have execute // scripts false widgets dont get there require calls // does suck out possible widgetpackage registration as well tmp = []; while(tmp && requires.length<100){ tmp = sc.match(/dojo\.(?:(?:require(?:After)?(?:If)?)|(?:widget\.(?:manager\.)?registerWidgetPackage)|(?:(?:hostenv\.)?setModulePrefix))\((['"]).*?\1\)\s*;?/); if(!tmp){ break;} requires.push(tmp[0]); sc = sc.replace(tmp[0], ""); } scripts.push(sc); } s = s.replace(/ ]*>[\s\S]*?<\/script>/i, ""); } // scan for scriptScope in html eventHandlers and replace with link to this pane if(this.executeScripts){ var regex = /(<[a-zA-Z][a-zA-Z0-9]*\s[^>]*\S=(['"])[^>]*[^\.\]])scriptScope([^>]*>)/; var pos = 0;var str = "";match = [];var cit = ""; while(pos > -1){ pos = s.search(regex); if(pos > -1){ cit = ((RegExp.$2=="'") ? '"': "'"); str += s.substring(0, pos); s = s.substr(pos).replace(regex, "$1dojo.widget.byId("+ cit + this.widgetId + cit + ").scriptScope$3"); } } s = str + s; } // cut out all match = []; while(match){ match = s.match(/]*rel=['"]?stylesheet['"]?[^>]*)>/i); if(!match){ break; } attr = match[1].match(/href=(['"]?)([^'">]*)\1/i); if(attr){ linkStyles.push(attr[2]); } s = s.replace(new RegExp(match[0]), ""); } return {"xml": s, // Object "styles": styles, "linkStyles": linkStyles, "titles": titles, "requires": requires, "scripts": scripts, "remoteScripts": remoteScripts, "url": url}; }, _setContent: function(/*String*/ xml){ // summary: // private internal function without path regExpCheck and no onLoad calls aftervards // remove old children from current content this.destroyChildren(); // remove old stylenodes from HEAD if(this._remoteStyles){ for(var i = 0; i < this._remoteStyles.length; i++){ if(this._remoteStyles[i] && this._remoteStyles.parentNode){ this._remoteStyles[i].parentNode.removeChild(this._remoteStyles[i]); } } this._remoteStyles = null; } var node = this.containerNode || this.domNode; try{ if(typeof xml != "string"){ node.innerHTML = ""; node.appendChild(xml); }else{ node.innerHTML = xml; } } catch(e){ e = "Could'nt load content:"+e; this._handleDefaults(e, "onContentError"); } }, setContent: function(/*String*/ data){ // summary: // Destroys old content and setting new content, and possibly initialize any widgets within 'data' if(this._callOnUnLoad){ // this tells a remote script clean up after itself this.onUnLoad(); } this._callOnUnLoad = true; if(!data || dojo.dom.isNode(data)){ // if we do a clean using setContent(""); or setContent(#node) bypass all parseing, extractContent etc this._setContent(data); this.onResized(); this.onLoad(); }else{ // need to run splitAndFixPaths? ie. manually setting content if((!data.xml)&&(this.adjustPaths)){ data = this.splitAndFixPaths(data); } if(this.extractContent) { var matches = data.xml.match(/ ]*>\s*([\s\S]+)\s*<\/body>/im); if(matches) { data.xml = matches[1]; } } // insert styleNodes, from
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